Wistron's own mistakes led to violence: Karnataka Minister Shivaram Hebbar AFP Photo Bengaluru: Karnataka has blamed the Wistron Corporation for the violence that took place in its plant that manufactures Apple phones on contract. Labour Minister Shivaram Hebbar on Monday said that vandalism at the companyâs plant last year was due to its own fault as it failed to address the issues of the aggrieved employees on time. He added that Wistron has rectified its mistake and resumed its operations in Kolar after cutting down its contract employee strength from 8,490 to 2,657 from this month. Hebbar washed his hands off the incident stating that Wistron had failed to intimate its expansion plans to departments concerned. This sparked off the violence.